Exported expando interface to perl. Fix for statusbar deinit.

git-svn-id: http://svn.irssi.org/repos/irssi/trunk@2975 dbcabf3a-b0e7-0310-adc4-f8d773084564

8 files changed, 192 insertions, 3 deletions

diff --git a/src/core/expandos.c b/src/core/expandos.c
index 8f97836a..7ebc4f20 100644
--- a/src/core/expandos.c
+++ b/src/core/expandos.c
@@ -46,6 +46,8 @@ typedef struct {
         int signal_args[MAX_EXPANDO_SIGNALS];
 } EXPANDO_REC;
 
+const char *current_expando = NULL;
+
 static int timer_tag;
 
 static EXPANDO_REC *char_expandos[255];
diff --git a/src/core/expandos.h b/src/core/expandos.h
index cf057994..45608a26 100644
--- a/src/core/expandos.h
+++ b/src/core/expandos.h
@@ -16,6 +16,8 @@ typedef enum {
 typedef char* (*EXPANDO_FUNC)
 	(SERVER_REC *server, void *item, int *free_ret);
 
+extern const char *current_expando;
+
 /* Create expando - overrides any existing ones.
    ... = signal, type, ..., NULL - list of signals that might change the
    value of this expando */
diff --git a/src/core/special-vars.c b/src/core/special-vars.c
index 7291f469..f7d69728 100644
--- a/src/core/special-vars.c
+++ b/src/core/special-vars.c
@@ -113,8 +113,10 @@ static char *get_long_variable_value(const char *key, SERVER_REC *server,
 
 	/* expando? */
         func = expando_find_long(key);
-	if (func != NULL)
+	if (func != NULL) {
+		current_expando = key;
 		return func(server, item, free_ret);
+	}
 
 	/* internal setting? */
 	type = settings_get_type(key);
@@ -176,7 +178,15 @@ static char *get_variable(char **cmd, SERVER_REC *server, void *item,
 	}
 	*free_ret = FALSE;
 	func = expando_find_char(**cmd);
-	return func == NULL ? NULL : func(server, item, free_ret);
+	if (func == NULL)
+		return NULL;
+	else {
+		char str[2];
+
+		str[0] = **cmd; str[1] = '\0';
+		current_expando = str;
+		return func(server, item, free_ret);
+	}
 }
 
 static char *get_history(char **cmd, void *item, int *free_ret)
diff --git a/src/perl/Makefile.am b/src/perl/Makefile.am
index 1c837e28..293bd80c 100644
--- a/src/perl/Makefile.am
+++ b/src/perl/Makefile.am
@@ -78,6 +78,7 @@ common_sources = \
 	common/Irssi.pm \
 	common/Channel.xs \
 	common/Core.xs \
+	common/Expandos.xs \
 	common/Ignore.xs \
 	common/Log.xs \
 	common/Masks.xs \
diff --git a/src/perl/common/Expando.xs b/src/perl/common/Expando.xs
new file mode 100644
index 00000000..d3a232f7
--- /dev/null
+++ b/src/perl/common/Expando.xs
@@ -0,0 +1,170 @@
+#include "module.h"
+#include "expandos.h"
+
+typedef struct {
+	PERL_SCRIPT_REC *script;
+	SV *func;
+} PerlExpando;
+
+static GHashTable *perl_expando_defs;
+
+static char *sig_perl_expando(SERVER_REC *server, void *item, int *free_ret);
+
+static int check_expando_destroy(char *key, PerlExpando *rec,
+				 PERL_SCRIPT_REC *script)
+{
+	if (rec->script == script) {
+                expando_destroy(key, sig_perl_expando);
+		SvREFCNT_dec(rec->func);
+		g_free(key);
+		g_free(rec);
+		return TRUE;
+	}
+
+        return FALSE;
+}
+
+static void script_unregister_expandos(PERL_SCRIPT_REC *script)
+{
+	g_hash_table_foreach_remove(perl_expando_defs,
+				    (GHRFunc) check_expando_destroy, script);
+}
+
+void perl_expando_init(void)
+{
+	perl_expando_defs = g_hash_table_new((GHashFunc) g_str_hash,
+					     (GCompareFunc) g_str_equal);
+	signal_add("script destroyed", (SIGNAL_FUNC) script_unregister_expandos);
+}
+
+static void expando_def_destroy(char *key, PerlExpando *rec)
+{
+	SvREFCNT_dec(rec->func);
+	g_free(key);
+	g_free(rec);
+}
+
+void perl_expando_deinit(void)
+{
+	signal_remove("script destroyed", (SIGNAL_FUNC) script_unregister_expandos);
+
+	g_hash_table_foreach(perl_expando_defs,
+			     (GHFunc) expando_def_destroy, NULL);
+	g_hash_table_destroy(perl_expando_defs);
+}
+
+static char *perl_expando_event(PerlExpando *rec, SERVER_REC *server,
+				WI_ITEM_REC *item, int *free_ret)
+{
+	dSP;
+	char *ret;
+	int retcount;
+
+	ENTER;
+	SAVETMPS;
+
+	PUSHMARK(SP);
+	XPUSHs(sv_2mortal(iobject_bless(server)));
+	XPUSHs(sv_2mortal(iobject_bless(item)));
+	PUTBACK;
+
+	retcount = perl_call_sv(rec->func, G_EVAL|G_SCALAR);
+	SPAGAIN;
+
+	if (SvTRUE(ERRSV)) {
+		/* make sure we don't get back here */
+		if (rec->script != NULL)
+			script_unregister_expandos(rec->script);
+
+		signal_emit("script error", 2, rec->script, SvPV(ERRSV, PL_na));
+		ret = NULL;
+	} else if (retcount > 0) {
+		ret = g_strdup(POPp);
+		*free_ret = TRUE;
+	}
+
+	PUTBACK;
+	FREETMPS;
+	LEAVE;
+
+	return ret;
+}
+
+static char *sig_perl_expando(SERVER_REC *server, void *item, int *free_ret)
+{
+        PerlExpando *rec;
+
+	rec = g_hash_table_lookup(perl_expando_defs, current_expando);
+	if (rec != NULL)
+		return perl_expando_event(rec, server, item, free_ret);
+	return NULL;
+}
+
+void expando_signals_add_hash(const char *key, SV *signals)
+{
+	HV *hv;
+        HE *he;
+	I32 len;
+	const char *argstr;
+	ExpandoArg arg;
+
+	if (!is_hvref(signals)) {
+		croak("Usage: Irssi::expando_create(key, func, hash)");
+		return;
+	}
+
+        hv = hvref(signals);
+	hv_iterinit(hv);
+	while ((he = hv_iternext(hv)) != NULL) {
+		SV *argsv = HeVAL(he);
+		argstr = SvPV(argsv, PL_na);
+
+		if (strcasecmp(argstr, "none") == 0)
+			arg = EXPANDO_ARG_NONE;
+		else if (strcasecmp(argstr, "server") == 0)
+			arg = EXPANDO_ARG_SERVER;
+		else if (strcasecmp(argstr, "window") == 0)
+			arg = EXPANDO_ARG_WINDOW;
+		else if (strcasecmp(argstr, "windowitem") == 0)
+			arg = EXPANDO_ARG_WINDOW_ITEM;
+		else if (strcasecmp(argstr, "never") == 0)
+			arg = EXPANDO_NEVER;
+		else {
+			croak("Unknown signal type: %s", argstr);
+			break;
+		}
+		expando_add_signal(key, hv_iterkey(he, &len), arg);
+	}
+}
+
+MODULE = Irssi::Expando  PACKAGE = Irssi
+PROTOTYPES: ENABLE
+
+void
+expando_create(key, func, signals)
+	char *key
+	SV *func
+	SV *signals
+PREINIT:
+        PerlExpando *rec;
+CODE:
+	rec = g_new0(PerlExpando, 1);
+	rec->script = perl_script_find_package(perl_get_package());
+        rec->func = perl_func_sv_inc(func, perl_get_package());
+
+	expando_create(key, sig_perl_expando, NULL);
+	g_hash_table_insert(perl_expando_defs, g_strdup(key), rec);
+        expando_signals_add_hash(key, signals);
+
+void
+expando_destroy(name)
+	char *name
+PREINIT:
+        gpointer key, value;
+CODE:
+	if (g_hash_table_lookup_extended(perl_expando_defs, name, &key, &value)) {
+                g_hash_table_remove(perl_expando_defs, name);
+		g_free(key);
+		SvREFCNT_dec((SV *) value);
+	}
+	expando_destroy(name, sig_perl_expando);
diff --git a/src/perl/common/Irssi.xs b/src/perl/common/Irssi.xs
index 67d5e96c..328e32d3 100644
--- a/src/perl/common/Irssi.xs
+++ b/src/perl/common/Irssi.xs
@@ -14,16 +14,19 @@ CODE:
 	initialized = TRUE;
 
         perl_settings_init();
+	perl_expando_init();
 
 void
 deinit()
 CODE:
 	if (!initialized) return;
+	perl_expando_deinit();
         perl_settings_deinit();
 
 BOOT:
         irssi_boot(Channel);
 	irssi_boot(Core);
+	irssi_boot(Expando);
 	irssi_boot(Ignore);
 	irssi_boot(Log);
 	irssi_boot(Masks);
diff --git a/src/perl/common/Server.xs b/src/perl/common/Server.xs
index adcabb16..facf1da0 100644
--- a/src/perl/common/Server.xs
+++ b/src/perl/common/Server.xs
@@ -31,7 +31,7 @@ PPCODE:
 	}
 
 Irssi::Connect
-server_create_conn(chat_type, dest, port=6667, chatnet=NULL, password=NULL, nick=NULL)
+server_create_conn(chat_type, dest, port, chatnet=NULL, password=NULL, nick=NULL)
 	int chat_type
 	char *dest
 	int port
diff --git a/src/perl/textui/Statusbar.xs b/src/perl/textui/Statusbar.xs
index 67b88e40..522a93ee 100644
--- a/src/perl/textui/Statusbar.xs
+++ b/src/perl/textui/Statusbar.xs
@@ -31,6 +31,7 @@ void perl_statusbar_init(void)
 
 static void statusbar_item_def_destroy(void *key, void *value)
 {
+	statusbar_item_unregister(key);
 	g_free(key);
         g_free(value);
 }